Key-anchor



W. S. BRUMMETT AND E. C. REED.

KEY ANCHOR. APPLICATION FILED NOV. 28, 1919- 1,347,773, Patented July 27, 1920.

INVENTORS.

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UNITED STATES WILLIAM S. BRUMMETT AND EDXVARD C. REED, PAWHUSKA, OKLAHOMA.

KEY-ANCHOR.

. T all whom it may concern Be it known that we, VILLIABLS; BRUM- METT and EDYVARD C. REED, citizens of the United States, residing at Pawhuska, in the county of Osage and State of Oklahoma, have invented certain new and useful Improvements in Key-Anchors, of which the following is a specification.

Our invention relates'to key anchors es pecially adapted for use in wooden constructions.

Among contractors and companies operating in oil fields, the foundations of drilling rigs are keyed together with wooden keys, and the continual jarring, caused by the spudding and drilling, works the keys loose, thus requiring a great deal of time and extra labor in redriving them.

Our object is to provide adevice of simple, durable, and inexpensive construction, which will cooperate with the keys, when driven up, to securely anchor them in their operative positions, thereby saving the ex tra labor and expense of redriving above referred to, while at the same time providing for the rig a more constantly rigid foundation. r

Minor objects will appear in the subjoined description.

A leading feature of the invention consists of a plate or other comparatively thin piece of metal provided with holes and adapted to be received between the face of the key and the piece of timber that is to be held in position thereby.

The invention consists in certain novel features of construction and arrangement of parts, "as will be hereinafter described and claimed, reference being had to the accompanying drawings, in which- Figure 1 is a broken perspective showing two pieces of timber keyed together according to the principles of my invention.

Fig. 2 is a side elevation of one form of my improved key anchor. Fig. 3 is a sectional view, taken on-the line 3-3 of Fig. 2, with the additional showing of a rod as employed for distorting the holes in the anchor plate; and, Fig. 4 is a broken sectional view, on an enlarged scale, similar to Fig. 3, but showing the outwardly bent portions of the plate filed to chisel edges at opposite sides of one of the openings.

The numeral 1 indicates a flat metallic Specification of Letters Patent.

Patented July 27, 1920.

Applicationfiled November 28, 1919. Serial No. 341,077.

7 plate formed preferably of steel, and made thicker or thinner according to the-size and hardness of the timbers with which it is to be used. This plate is shown in Fig. 2, as provided with an upper row of openings 2,

and alower parallel row 3. The holes 2 and 3 may be exactly alike to start with, but at opposite sides of the former, the metal is bent laterally outward toward one side of the plate at one side of each hole and toward the other side of the plate at the other side of the hole, to form the burs 4; whereas the holes 3 are simply plain holes in a flat or even surface.

A very easy, convenient, and rapid way of forming the burs 4, is to take a rod 5, of a size adapted to be easily received into the openings, and having passed the same into an opening, force it downwardly at one end bringing it to a sharp incline relatively to the plate, in the direction of the longitudinal extent thereof, as illustrated in Fig. 3. 1

If a round file be passed into the openings 2, and the inner corners 6 of the burs t-filed ofi, till the cutting face of the file comes to the position indicated by the dotted lines 77 in Fig. 3, the burs will then be provided with chisel edges. 8, as illustrated at one of the openings in Fig. 4.

In operation, the key anchor 1 is placed between the key .and the piece of timber to be held in place thereby, and then the key is driven home. On the side of the plate or anchor next the key, the burs 4 at the margins of the openings 2 will become pressed intothe key and firmly embedded therein, while the burs on the other side of the plate .will become equally embedded in the piece the openings 3, which will also serve the 7 same purpose of holding the key securely anchored in its operative position.

It will be noticed that the burs 4 on one side of the plate 1, all point in the same direction, and that those on the opposite side of the plate all point in the opposite direction, to permit the wedge to move on the plate in the direction the burs next to it point; and likewise to permit the plate, if need be, to move on the piece of timber with driven home, and will hold the parts firmly locked together till the wood has time to expand and swell into the openings 3, which will eventually become filled with wood that does not have its grain broken. lVith this idea in .mind, it will be noticed that the series of openings 2 are out of alinement with the openings 3, and that there are fewer of the openings 2 than of the openings 3.

Our anchor plate may have both kinds of openings, as illustrated in Fig. 2, or it may have only the burred openings 2, or only the plain openings 3.- r a When the device is provided with the burred openings 2, not many of them will be required, because they take such a prompt and firm'holdupon the wood: and the open ings may be placed out of alinement with each otherto prevent any two ofthem from abrading the wood on the same line, as the key is being driven in. On the other hand, if the anchor be onlyprovided with the openings 3, it makes little difference how great a number of them are employed, because they have such a slight tendency to abrade the wood 'as the wedge is being drivenhome: also it makes little difference The 'we have provided a key anchor of great simplicity and adaptability to the work required of such a device, and one that IS extremely easy and economical of construction, and withal very durable.

Of course, it is understood that our device may be used ior many other purposes besides in connection with the foundations of drilling rigs, but we have spo'kenofthat use of it in this application, because that happens to be the particular purpose for which we propose to employ it at the present time.

Having now described our invention, what we claim as new and desire to secure by Letters Patent is :1. A device of. the character described, comprising a plate having openings with oppositely extending burs at diametrically opposite sides of said openings, said plate also having other. plain openings, in the even surface thereof, without burs at their margins.

2. A device of thecharacter described, comprising a plate having openings with oppositely extending burs at diametrically opposite sideszof said openings, said plate also having other plain openings without burs at their sides and out of longitudinal alinement with said burred openings.

In testimony whereof we aflix, our signatures. l

EDWARD c. REED,

v 2 WILLIA B E MMETT. i 

